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Crenshaw Lock

Transponder Key Programming in Valencia · 24/7 mobile

Transponder Key Programming in Valencia, CA

Crenshaw Lock Company provides mobile transponder key programming in Valencia, California, 24 hours a day, 7 days a week. We come to your vehicle and program chip keys to its immobilizer, so you never have to tow it. Call (323) 997-8867 to talk with a technician.

  • Mobile to your Valencia location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
Car key being programmed with a handheld programmer inside a car
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A transponder key looks like an ordinary key, but inside the plastic head is a small chip that talks to your car's immobilizer. If the chip isn't recognized, the engine won't start, even when the metal blade turns the ignition. That is why a spare key from a hardware store often unlocks the door but does nothing else. The key has to be cut correctly and then programmed to your specific vehicle.

In a spread-out, car-dependent community like Valencia, losing your only key can stop everything: the commute on I-5, the school run, a shift at the Valencia Industrial Center, or a day at Westfield Valencia Town Center. Because Crenshaw Lock Company is fully mobile, there is no shop to get to. We travel to your driveway, parking structure, or work lot and do the programming where the car is sitting.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar built the business on straightforward, honest automotive work. This page explains how transponder programming works, what affects the cost, and what to expect if you call us from anywhere in Valencia.

How it works in Valencia

  1. 1

    You call and describe the situation

    Call (323) 997-8867 any hour. Tell us the make, model, and year of the vehicle, whether you still have a working key, and where the car is parked. This helps us determine which kind of key and programming method your vehicle needs.

  2. 2

    We come to the vehicle

    Our technician drives to you, whether that's a driveway in Westridge, a carport in a townhome village off McBean Parkway, or a business lot near the Industrial Center. There is no storefront, so the work happens at your car.

  3. 3

    We confirm ownership

    Before cutting or programming anything, we ask for reasonable proof that the vehicle is yours, such as ID matching the registration. This protects you and is a standard step for responsible automotive locksmith work.

  4. 4

    We cut and prepare the key

    If you need a new key, the blade is cut to match your vehicle's lock, either from the existing key or by code. The chip inside the key is then matched to the vehicle's system requirements.

  5. 5

    We program the key to the immobilizer

    Using professional diagnostic equipment, we connect to the vehicle and register the new key so the immobilizer recognizes it. Depending on the vehicle, we may also be able to remove a lost key from the system.

  6. 6

    We test everything before we leave

    We check that the key opens the doors, turns the ignition, and starts the engine, and test any remote functions. You should leave with working keys, not guesses.

Need transponder key programming in Valencia?

24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.

Call (323) 997-8867

What affects the price

  • Vehicle make, model, and year, since some systems are far more involved to program than others
  • Whether you have a working key to copy from or all keys are lost, which changes the programming procedure
  • The type of key: a basic transponder key, a remote-head key, or a push-button smart key
  • Whether extra keys are being added at the same visit, or lost keys need to be erased from the vehicle's memory
  • Time of day and how far we travel, since we are available 24/7 and come to you
  • Whether the key blade must be cut or key code retrieval is required for your vehicle

Why Valencia chooses us

  • Fully mobile service: we program keys at your car in Valencia, so you avoid towing to a dealership
  • Open 24/7, including nights and weekends, for situations like a lost key after an evening at Six Flags Magic Mountain
  • In business since 1987, with owner and lead tech David Shar guiding the work
  • We explain what your vehicle needs before work begins, rather than pushing a more expensive option
  • We test the key's door, ignition, and starting functions before we leave
  • We can program spare keys at the same visit, which is usually easier than waiting until you lose the last one

Transponder Key Programming across Valencia

Valencia's layout shapes how people get stranded without a key. The master-planned community, started by Newhall Land in 1965, is built around paseo-connected villages, and most households depend on cars to get to I-5, McBean Parkway, Valencia Boulevard, Magic Mountain Parkway, and Newhall Ranch Road. If a key is lost in ZIP 91355 or 91354, a tow to a dealership is slow and inconvenient. We bring the equipment to you.

We work across Valencia's neighborhoods, from gated Westridge and Tesoro del Valle to Northbridge, Valencia Summit, Bridgeport, and Old Orchard. In gated communities, it helps to let us know the gate or guest-entry process when you call so we can reach your vehicle without delay. Townhome and condo residents with assigned parking or garages can tell us exactly where the car is located.

We also help people who are away from home: students and staff near CalArts, visitors to Westfield Valencia Town Center, families and employees around Henry Mayo Newhall Hospital, and workers in the Valencia Industrial Center. If your car is in a parking structure or business lot, tell us the location and we will plan the visit accordingly. Call (323) 997-8867 any time.

Locked out or need a locksmith now?

24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.

Call (323) 997-8867

Other Valencia locksmith services

See all of our Valencia services, or our citywide transponder key programming page.

Transponder Key Programming in Valencia — FAQs

What is transponder key programming?
It is the process of registering a key's chip with your vehicle's immobilizer so the engine will start. Without that programming, the key may open the door but the car will not run.
Can you program a key in Valencia if I've lost all my keys?
In many cases, yes. All-keys-lost situations take more steps than copying an existing key, but we can often handle them at your vehicle. Call (323) 997-8867 with your make, model, and year.
Do I need to tow my car to a dealership?
Usually not. Because we are fully mobile, we bring cutting and programming equipment to your car in Valencia. Some unusual vehicles may be exceptions, and we will tell you honestly if that applies.
Are you available at night or on weekends?
Yes. We operate 24/7, so a lost key late at night or on a holiday weekend is not a problem. Call (323) 997-8867.
Do you come to gated communities like Westridge or Tesoro del Valle?
Yes. Let us know the gate or entry process when you call, and we will coordinate access to your vehicle.
Why does a hardware-store copy not start my car?
A plain copy only duplicates the metal blade. It lacks a chip that your immobilizer recognizes, so it needs a proper transponder key that is programmed to your vehicle.
What proof of ownership do you need?
We typically ask for ID that matches the vehicle registration or other reasonable proof that the car is yours. This is a standard safeguard for automotive key work.
Can you make extra spare keys while you're there?
Yes. Adding a spare during the same visit is often simpler than starting over after losing your last key. Ask when you call (323) 997-8867.
DS

Reviewed by David Shar — Owner & Lead Technician

Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.

Last updated 2026-10-12.

Call (323) 997-8867 · Open 24/7